An image sensor and pixel circuit therefor includes a plurality of pixels arranged in an array, a first pixel of the plurality of pixels including: a first photoelectric conversion device; a first amplifier including a first input terminal connected to the first photoelectric conversion device, and a first output terminal; a first capacitor disposed between the first input terminal and the first output terminal; and a first reset switch network disposed between the first input terminal and the first output terminal in parallel with the first capacitor, the first reset switch network including a first reset transistor with a first body terminal connected to a common reference voltage, a second reset transistor, and a third reset transistor.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The pixel circuit according to claim 1, wherein the photoelectric conversion device receives a charge from an incident light, and the amplifier outputs a signal indicative of the received charge.
3. The pixel circuit according to claim 1, wherein the photoelectric conversion device includes a first electrode connected to the first input terminal and a second electrode connected to a cathode voltage.
4. The pixel circuit according to claim 1, wherein the amplifier includes a second input terminal configured to receive a predetermined terminal voltage.
5. The pixel circuit according to claim 4, wherein the predetermined terminal voltage is equal to the common reference voltage.
6. The pixel circuit according to claim 1, wherein the first reset switch is a transistor.
11. The pixel circuit according to claim 10, wherein the other of the source terminal or the drain terminal of the second reset transistor is connected to the common reference voltage.
12. The pixel circuit according to claim 7, wherein the first amplifier includes a second input terminal configured to receive a predetermined terminal voltage.
13. The pixel circuit according to claim 12, wherein the predetermined terminal voltage is equal to the common reference voltage.
14. The pixel circuit according to claim 7, wherein the first photoelectric conversion device includes a first electrode connected to the first input terminal and a second electrode connected to a cathode voltage.
17. The pixel circuit according to claim 7, wherein the first photoelectric conversion device receives a charge from an incident light, and the amplifier outputs a signal indicative of the received charge.
18. The pixel circuit according to claim 7, wherein the first reset transistor, the second reset transistor, and the third reset transistor are NMOS transistors.
19. The pixel circuit according to claim 7, wherein the first reset transistor, the second reset transistor, and the third reset transistor are PMOS transistors.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
January 14, 2021
August 30, 2022
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